Eden Patera

{{Short description|Feature located in the Mare Acidalium quadrangle on the planet Mars}}

{{Infobox feature on celestial object

|name = Eden Patera

|image = 200px

|caption = Eden Patera based on THEMIS day-time image

|type = Patera

|coordinates = {{coord|33.6|N|348.9|E|globe:mars_type:landmark|display=inline,title}}

|naming = Classical albedo feature name

}}

Eden Patera is a feature located in the Mare Acidalium quadrangle on the planet Mars. In October 2013 the feature gained some attention when it was speculated it may be a supervolcano rather than an impact crater, according to research from the Planetary Science Institute in Tucson, led by Joseph R. Michalski.[http://www.astronomy.com/news/2013/10/mars-crater-may-actually-be-ancient-supervolcano Mars crater may actually be ancient supervolcano], astronomy.com[http://www.nasa.gov/content/goddard/mars-crater-may-actually-be-ancient-supervolcano/index.html#.UmcSrco8v2k Mars Crater May Actually Be Ancient Supervolcano], NASA, Oct. 22, 2013{{Cite journal|title=Supervolcanoes within an ancient volcanic province in Arabia Terra, Mars|first1=Joseph R.|last1=Michalski|first2=Jacob E.|last2=Bleacher|date=October 7, 2013|journal=Nature|volume=502|issue=7469|pages=47–52|doi=10.1038/nature12482|pmid=24091975|hdl=2060/20140011237|hdl-access=free}}

The research postulated the crater was formed by the volcano's caldera collapsing, rather than from an impact.{{Cite news|url=https://www.bbc.com/news/science-environment-24348673|title=Supervolcanoes ripped up early Mars|last=Amos|first=Jonathan|date=2013-10-02|newspaper=BBC News|access-date=2017-02-12|language=en-GB}} Some of the reasons for suspecting that Eden Patera is a collapsed caldera rather than an impact crater are its irregular shape, an apparent lack of a raised rim or central peak, and lack of impact ejecta.